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The validity of perturbation theory for the O(N) non-linear sigma models

Recently it has been claimed that ordinary perturbation theory (OPT) gives incorrect weak coupling expansions for lattice O(N) non-linear sigma models in the infinite volume limit, and in particular that the two-dimensional non-abelian models are not asymptotically free, contrary to previous finding...

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Detalles Bibliográficos
Autor principal:	Cline, James M
Lenguaje:	eng
Publicado:	1986
Materias:	General Theoretical Physics
Acceso en línea:	https://dx.doi.org/10.1016/0370-2693(86)90241-8 http://cds.cern.ch/record/167294

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